The invention discloses a data integration method, which comprises the following steps of S1, constructing a data integration system; S2, establishing a unified data standard; S3, integrating multi-professional dynamic data; S4, realizing the service registration access management. Stored data are mainly composed of two-dimensional data, three-dimensional data, warehouse surface design data, experimental detection data, rolling and monitoring data, temperature monitoring data and quality examination and evaluation data. The warehouse surface design refers to the design information of a warehouse surface. The integration system of two-dimensional data and three-dimensional data comprises a two-dimensional data analysis unit, a two-dimensional coordinate data generation unit, a three-dimensional model component generation unit, a three-dimensional coordinate data generation unit, a data integration unit, a two-dimensional model generation unit and a model construction library unit. According to the invention, the data integration method is simple in structure and reasonable in design, wherein the monitoring and the processing of data can be more effectively carried out. In addition,a two-dimensional model and a three-dimensional model are integrated on one platform. Therefore, the examination personnel can review the construction only by adopting the basic computer operation.